61672151454 has 8 divisors (see below), whose sum is σ = 123344302920. Its totient is φ = 20557383816.

The previous prime is 61672151441. The next prime is 61672151467. The reversal of 61672151454 is 45415127616.

It is an interprime number because it is at equal distance from previous prime (61672151441) and next prime (61672151467).

It is a sphenic number, since it is the product of 3 distinct primes.

61672151454 is an admirable number.

It is a super-2 number, since 2×61672151454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5139345949 + ... + 5139345960.

It is an arithmetic number, because the mean of its divisors is an integer number (15418037865).

Almost surely, 2^61672151454 is an apocalyptic number.

61672151454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61672151454 is a wasteful number, since it uses less digits than its factorization.

61672151454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278691914.

The product of its digits is 201600, while the sum is 42.

The spelling of 61672151454 in words is "sixty-one billion, six hundred seventy-two million, one hundred fifty-one thousand, four hundred fifty-four".