45194951520 has 288 divisors, whose sum is σ = 164597142528. Its totient is φ = 11252957184.

The previous prime is 45194951507. The next prime is 45194951551. The reversal of 45194951520 is 2515949154.

45194951520 is a `hidden beast` number, since 4 + 5 + 1 + 9 + 495 + 152 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3101692 + ... + 3116228.

It is an arithmetic number, because the mean of its divisors is an integer number (571517856).

Almost surely, 2^45194951520 is an apocalyptic number.

45194951520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45194951520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82298571264).

45194951520 is an abundant number, since it is smaller than the sum of its proper divisors (119402191008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45194951520 is a wasteful number, since it uses less digits than its factorization.

45194951520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702 (or 14691 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The spelling of 45194951520 in words is "forty-five billion, one hundred ninety-four million, nine hundred fifty-one thousand, five hundred twenty".