45952640778 has 32 divisors (see below), whose sum is σ = 100676359872. Its totient is φ = 13867257600.

The previous prime is 45952640777. The next prime is 45952640801. The reversal of 45952640778 is 87704625954.

It is a happy number.

It is a super-2 number, since 2×45952640778² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45952640771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428601 + ... + 1460412.

It is an arithmetic number, because the mean of its divisors is an integer number (3146136246).

Almost surely, 2^45952640778 is an apocalyptic number.

45952640778 is an abundant number, since it is smaller than the sum of its proper divisors (54723719094).

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

45952640778 is a wasteful number, since it uses less digits than its factorization.

45952640778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889270.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 45952640778 in words is "forty-five billion, nine hundred fifty-two million, six hundred forty thousand, seven hundred seventy-eight".