40761240978 has 16 divisors (see below), whose sum is σ = 81525761856. Its totient is φ = 13586533680.

The previous prime is 40761240973. The next prime is 40761240979. The reversal of 40761240978 is 87904216704.

It is a super-2 number, since 2×40761240978² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40761240973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43083 + ... + 288753.

It is an arithmetic number, because the mean of its divisors is an integer number (5095360116).

Almost surely, 2^40761240978 is an apocalyptic number.

40761240978 is an abundant number, since it is smaller than the sum of its proper divisors (40764520878).

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

40761240978 is a wasteful number, since it uses less digits than its factorization.

40761240978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273329.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 40761240978 in words is "forty billion, seven hundred sixty-one million, two hundred forty thousand, nine hundred seventy-eight".