30621954004 has 24 divisors (see below), whose sum is σ = 56961492840. Its totient is φ = 14354251776.

The previous prime is 30621953993. The next prime is 30621954019. The reversal of 30621954004 is 40045912603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8400089104 + 22221864900 = 91652^2 + 149070^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858639 + ... + 893590.

It is an arithmetic number, because the mean of its divisors is an integer number (2373395535).

Almost surely, 2^30621954004 is an apocalyptic number.

30621954004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30621954004 is a deficient number, since it is larger than the sum of its proper divisors (26339538836).

30621954004 is a wasteful number, since it uses less digits than its factorization.

30621954004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752507 (or 1752505 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 30621954004 in words is "thirty billion, six hundred twenty-one million, nine hundred fifty-four thousand, four".